Best Time to Fly SFO to PSC: On-Time Stats by Hour & Airline
San Francisco International → Tri Cities
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 80.9% of San Francisco (SFO) to Pasco/Kennewick/Richland (PSC) flights arrived on time (594 scheduled flights). That is 3.2 points above the national average of 77.6%.
SkyWest Airlines was the only reporting airline with regular flights on this route.
March has been the best month (89% on time) and Thursday the weakest day of the week (74%).
0.2% of flights were cancelled, versus 1.8% nationally.
SFO to PSC on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlines | 80.9% | 98 min | 0.2% | 594 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SFO to PSC
On-time arrival % by scheduled departure hour (local time), 1,281 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 9am–10am | 91.6% | 0.0% | 488 |
| 10am–11am | 73.5% | 0.0% | 230 |
| 5pm–6pm | Limited data | 10 | |
| 6pm–7pm | Limited data | 16 | |
| 7pm–8pm | 80.8% | 1.0% | 101 |
| 8pm–9pm | 78.9% | 1.4% | 207 |
| 9pm–10pm | 68.4% | 0.6% | 173 |
| 10pm–11pm | 46.4% | 0.0% | 56 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SFO to PSC
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | Limited data | 26 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 80.4% | +0.2 pts | 1.7% | 58 |
| Summer peak (Jun 15 - Aug 15) | 79.6% | -0.6 pts | 0.0% | 216 |
| All other days | 80.2% | — | 0.4% | 981 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).